Property and Application of Lysine Salt of Fatty Acid.

Abstract

Soap has been the most popular surfactant, because of its low price, rich foam, and refreshed feeling after washing. However, the soap feels squeaky in rinsing and stretched after dried. The authors searched for mild surfactants to solve these problems, while preserving good points of soap. The lysine salt of fatty acid was a good surfactant with features such as; (1) It shows as low primary irritations to both skin and eye mucosa as other mild surfactants: (2) it shows better biodegradability than other salts of fatty acids. (3) It has excellent foaming power under various conditions. (4) In sensory tests, it shows rapid foaming, rich foam volume, long lasting foam at washing, and refreshed, moisturized, smooth feeling after dried.